pxf4336 Infineon Technologies Corporation, pxf4336 Datasheet - Page 61

• Manufacturer Part Number: pxf4336
• Description: Abm Premium Atm Buf Fer Manager
• Manufacturer: Infineon Technologies Corporation

two cores accepts the cell. The other core ignores it. Thus, each cell is stored and
queued in one of the two cores. The cell streams of both cores are multiplexed together
at the output. In normal operation, the schedulers are programmed such that the sum of
all output rates does not exceed the maximum rate supported by the UTOPIA transmit
interface. However, bandwidth overbooking of the interface is also possible, resulting in
backpressure towards the respective ABM-P core.
•
Figure 3-11 ABM-P in Uni-directional Mode Using both Cores
If the resources of one core are sufficient, the downstream core can be deactivated (see
Figure
downstream SDRAM. It also permits the SSRAM to be smaller (see below).
Data Sheet
3-12). This reduces power consumption and allows omission of the external
upstream
MASTER
MASTER
UTOPIA
UTOPIA
downstr.
transmit
receive
SSRAM interface
µP interface
LCI Table
Common
SDRAM interface
SDRAM interface
ABM-P Core
ABM-P Core
downstream
upstream
61
JTAG interface
Functional Description
upstream
UTOPIA
UTOPIA
downstr.
transmit
SLAVE
receive
SLAVE
PXF 4336 V1.1
2001-12-17
ABM-P